// files.cs

// You will usually need for input output operations
using System.IO;

using System;
//using System.Text;

using System.Net.Sockets;
using System.Net; // IPEndPoint


class debug
{
	public static void abc(string str)
	{
		// FileMode - Append, Create, CreateNew, Open, OpenOrCreate, or Truncate
		// FileAccess - Read, ReadWrite, or Write

		// Read the whole file contents in
		FileStream file = new FileStream("abc.txt", FileMode.OpenOrCreate | FileMode.Append, FileAccess.Write);


		// Create a new stream to read from a file
		StreamWriter f = new StreamWriter(file);

		f.Write(str);

		// Close StreamReader
		f.Close();

		// Close file
		file.Close();
	}// End of abc(..)

}// End of class abc


// Blocking sockets entry point of program
class Program
{
	static void Main()
	{
		// google.com -> 216.239.53.99:80

		debug.abc("Setting Up Socket:\r\n");
		//                            +-- an enum, which defines which networking we want to
		//                            |   use, InterNetwork implies IP v 4
		//                            |
		//                            |                       +- Socket type - reliable or 
		//                            |                       |                 unreliable
		//                            |                       |
		//                            |                       |                 +- Protocol
		//                            |                       |                 |
		Socket s = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp);

		// Connect to our server
		debug.abc("Connecting to Server:\r\n");
		int port = 80;
		System.Net.IPAddress ipAdd = System.Net.IPAddress.Parse("216.239.53.99");
		IPEndPoint cc = new IPEndPoint( ipAdd, port );
		
		//IPHostEntry IPHost = Dns.Resolve("www.google.com");
		//IPAddress[] addr = IPHost.AddressList; 
		//IPEndPoint cc = new IPEndPoint( addr[0], port );

		s.Connect(cc);

		if( !s.Connected ) debug.abc("unable to connect" );


		// Send the request for the html
		debug.abc("Sending:\r\n");
		try
		{
			string szData = "GET / HTTP/1.0\r\n\r\n";
			byte[] byData = System.Text.Encoding.ASCII.GetBytes(szData);
			s.Send(byData, byData.Length, 0);
		}
		catch (SocketException se)
		{
			System.Windows.Forms.MessageBox.Show ( se.Message );
		}

		// Receiving default html page
		debug.abc("Receive:\r\n");

		int iRxBytes = 1;
		while( iRxBytes > 0 )
		{
			byte [] buffer = new byte[1024];
			iRxBytes = s.Receive (buffer, buffer.Length, 0);

			string received = System.Text.Encoding.ASCII.GetString(buffer, 0, iRxBytes);

			debug.abc(received);
		}// End while loop

		s.Close();
	}
}


/*

void Listen( int port )
{     
     wait4socket = new Socket(AddressFamily.InterNetwork,SocketType.Stream,ProtocolType.Tcp );
     IPEndPoint localEp = new IPEndPoint( IPAddress.Any, port );
     wait4socket.Bind( localEp );

     // server mode; start listening
     wait4socket.Listen(1);

     // begin accepting connections
     socket = wait4socket.Accept();

     remoteHost = 
          IPAddress.Parse(((IPEndPoint)socket.RemoteEndPoint).Address.ToString()) +
          ":" + ((IPEndPoint)socket.RemoteEndPoint).Port.ToString();

     // on return from Accept(), readSock is a new,
     // connected socket

     // dump the wait socket now
     wait4socket.Close();
}

*/